Duplex 31803 pipe
Shahil
Jain
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Specification
| Standards | ASTM, AISI, JIS, DIN, EN, SUS, GB |
| Types | Welded, Seamless, ERW, Fabricated, CEW, CDW, CDS, DOM |
| Size range | 8" NB to 24" NB |
| Production technique | Decoiling, Punching, Bending, Welding, Cutting, Moulding |
| Form | Round, Hydraulic, Coiled, Square, U Shape, Rectangular, Straight, Honed Tubes, Pan Cake Coils |
| Thickness Range | SCH 10, SCH 160, SCH XXH, SCH XXS, SCH 5, SCH 40, SCH XS, SCH 80S, SCH 80 |
| Custom Size/Thickness | Available |
| End | Treaded, Beveled End, Plain End |
| Surface Finish | 8K, 1D, No.3, 180G, BA, No.4, 500G, No.1, Mirror Polished, 320G, HL, No.8, 400G, 2B, 600G or 800G Mirror finish Tubing, 2D, 400G Satin/ Hairline or Custom Finish as per customer's specification. |
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Marking Standard
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Name of Manufacturer |
| Schedule | |
| Pressure Class | |
| Tube Size, etc | |
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Test Certificates
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Third Party Inspection Report |
| Manufacturer Test Certificate | |
| Raw Materials Certificate | |
| 100% Radiography Test Report | |
| Laboratory Test Certificate from Govt. Approved Lab | |
| EN 10204/3.1B, EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC) |
Available Pipe Stainless Steel
UNS S32205 Seamless Pipes
UNS S32205 Welded Pipes
UNS S32205 ERW Pipes
ASME SA790 S31803 Polished Pipes
ASME SA790 S31803 Cold Drawn Pipes
ASME SA790 S31803 Customized Pipes
Werkstoff Nr. 1.4462 Square Pipes
Werkstoff Nr. 1.4462 Rectangular Pipes
Werkstoff Nr. 1.4462 Hollow Pipes
Chemical Composition S31803 Pipe
| Ni | Cr | Mo | Mn | Si | C | N | S | P | Fe | |
| MIN | 4.5 | 22.0 | 3.0 | - | - | - | 0.14 | - | - | - |
| MAX | 6.5 | 23.0 | 3.5 | 2.0 | 1.0 | 0.03 | 0.2 | 0.02 | 0.03 | Balance |
Duplex S31803 Pipe Mechanical Properties
| S31803 / S32205 | Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
Equivalent Grades for S31803 Duplex Stainless Steel Pipe
| STANDARD | UNS | WERKSTOFF NR. |
| Duplex S31803 | S31803 | 1.4462 |
Dimensional Tolerance
| Nominal pipe size up to 4 = ± 0.79 mm | 5 thru 8 = + 1.58 mm / - 0.79 mm 10 thru 18 = + 2.37 mm / - 0.79 mm | 20 thru 24 = + 3.18 mm / - 0.79 mm |
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| Wall Thickness All Diameters = - 12.5% + tolerance not specified |
Length + 6.40 mm / - 0 mm |
Weight Weight = + 10% / - 1.5% |
UNS S31803 Duplex Steel Pipe Size Chart
| Wall | Sizes ( O.D.) |
|---|---|
| .010 | 1/16" , 1/8" , 3/16" |
| .020 | 1/16" , 1/8" , 3/16" , 1/4" , 5/16" , 3/8" |
| .012 | 1/8" |
| .016 | 1/8" , 3/16" |
| .028 | 1/8" , 3/16" , 1/4" , 5/16" , 3/8" , 1/2" , 3/4" , 1" , 1 1/2" , 2" |
| .035 | 1/8" , 3/16" , 1/4" , 5/16" , 3/8" , 7/16" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 2" , 2 1/4" |
| .049 | 3/16" , 1/4" , 5/16" , 3/8" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/8" , 1 1/4" , 1 1/2" , 1 5/8" , 2" , 2 1/4" |
| .065 | 1/4" , 5/16" , 3/8" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 1 3/4" , 2" , 2 1/2" , 3" |
| .083 | 1/4" , 3/8" , 1/2" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 1 7/8" , 2" , 2 1/2" ,3" |
| .095 | 1/2" , 5/8" , 1" , 1 1/4" , 1 1/2" , 2" |
| .109 | 1/2" , 3/4" , 1" , 1 1/4" , 1 1/2" , 2" |
| .120 | 1/2" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 2" , 2 1/4" , 2 1/2" , 3" |
| .125 | 3/4" , 1" , 1 1/4" , 1 1/2" , 2" , 3" , 3 1/4" |
| .134 | 1" |
| .250 | 3" |
| .375 | 3 1/2" |
Duplex Steel UNS S31803 Pipe Pressure Rating
| Tube O.D. (in.) |
Wall Thickness of Tube (inches) | |||||||
|---|---|---|---|---|---|---|---|---|
| .028 | .035 | .049 | .065 | .083 | .095 | .109 | .120 | |
| Working Pressure (psig) | ||||||||
| 1/8 | 7900 | 10100 | ||||||
| 1/4 | 3700 | 4800 | 7000 | 9500 | ||||
| 5/16 | 3700 | 5400 | 7300 | |||||
| 3/8 | 3100 | 4400 | 6100 | |||||
| 1/2 | 2300 | 3200 | 4400 | |||||
| 3/4 | 2200 | 3000 | 4000 | 4600 | ||||
| 1 | 2200 | 2900 | 3400 | 3900 | 4300 | |||
Application
Aerospace
Cleaning Factories
Food Processing
Oil and Gas
Pharmaceutical
Power Plant
Ship Building
Water Systems
Refinery